Programmable wavelength detector. . . Varian's new programmable UV-IO0 wave- length delector automates UV detection on the LC ,5000 Series of Liquid Chromato- graphs. "I he result is increased throughput al lower cost per analysis Contact: Jack Bell, Varian Instrument Group, 2700 Mitchell Drive, Walnut Creek, CA 94508.

Beckman HPLC separations...

The p-Spherogel® Carbohydrate Column performs fast, easy and reliable carbohy- drate separations. Working with the Model

341 High Performance Liquid Chromate ~raph and the Model J56 Refractive Index Detector, the column provides excellent resolution of lri-. di- and monosaccharides. as well as of various sugar alcohols. Glycer- ine and ~.thanol can be separated from sugars in a single analysis, "['he /'-Sphcro~el Car- bohydrate Co;umn uses ligand exchange chromatography on an advanced resin, h offers consistenl resin reproduobil,ty, a long lift, and quirk analysis times. Contact Beckman Instruments, Inc.. Scientific lnst ru- ments Division, 1780 fourth Street, Berkeley, C dif~rnia o4 710: telephone: (415) 527.5900.

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LC 200 fraction c o l l e c t o r . . .

This unit is the smalle!;t unit available today that can o f f e r 200 tube capacity wherever space is at a premium: celd rooms, labora- tory hoodL refrigerated cabinets and crowded laboratory benches. A wide range of tube~ can be accumulated by the LC 200 without the need to buy adapters or additional racks.

Standard accessories wnh the I.C 200 include a drop stop valve to protect sample and colunm. I l t t icewotk In ~ave space, ,led ha t lery memory In guard against power inter- l'Uplions. Cont.~ct Ha,.ke Btwhler Instru- ments, Inc., 244 Saddle River Road, Saddle Brook, New Jersey 07002: (20I) 8.13-2320, 800-~31-130o.

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/- HPLC f i l t r a t i o n a p p a r a l u s . . .

This apparatus, designated GV 05012. is designed for vacuum filtration of volumes of 2.50 mL or les~. The GV 05012. is con- structed of borosilicate ~lass with a sinh'red glass f i l ler support. Glnund ~lass i~inls pre- ve ld t conlaminaliot~ from rubber stoppers used in conventional set-ups. The fiber is secured by the pressure of a convenlenl sprir03-actlon clamp, Contact Schleicher & Schuell, Inc., 543 WashingHm St., Keene, NH 03431: phone (00) 352-3810.

Fundamental and Applied Toxicology (2) 11-12/82 19/a